Process for the direct recovery of metallic antimony



A. GEgRMOT PROCESS FOR THE DIRECT RECOVERY OF METALLIC ANTIMONY I FiledSent. 11. 1922 K9 4 W10 M Patented Nov. 27, 1923.

UTED

PATENT cries,

ANTONIN GEBMOT, F ASNIER ES, FRANCE.

PROCESS FOR THE DIRECT RECOVERY OF METALLIC ANTIMONY.

Application filed September 11, 1922. SeriarNo. 587,450.

To all whom it may concern:

Be it known that I, ANTONIN GEnMo'r,

citizen of the Republic of France, and residing at' Asnieres, Seine, 56Rue de la Marne, have invented a Process for the D1- rect Recovery ofMetallic Antimony.

This invention relates to a process for directly obtaining metallicantimony by dis-' sociation, at a high temperature, from itstrisulphid'e. Y

The process consists in subi'ecting the trisulphide of antimony, in a cosed vessel, to

a high temperature, under the action of which it is dissociated orseparated into its two elements, sulphur and antimony, without anyformation of a sub-sulphide. The

.separation is complete and the metal obtained does not contain anytrace of'sulphur.

This latter may be collected at the end of ratus whereby the saidprocess may be com-' mercially eflected.

Fig. 1 of these drawings shows a longitw dinal view taken on the line I,I of Fig. 2 of the apparatus in question, and

Fi 2 is a sectional plan taken on the line II, I of Fig. 1. v I

This furnace comprises two compartments 0 and b, heated to anyappropriate 40 temperature by any known means, preferably by electricresistances r. The charging 'tinuous if the char i takes place in thecompartment a, the dissociation or separation in the compartment 1), thehearth of which communicates through an openin o with the hearth of a isat a lower leve than that of a so as to permit of the running out andthe drawing 01? of the metal through the tap-hole it without carryingover any sulphide.

The vapours of the sulphide not already v dissociated and of the sulphurwhich are evolved during the operation, pass through the flue c which isalso heated by resistances 7'. The greater part of the sulphide vapoursis dissociated in this flue, the metal formed flowing to the furnace I)to join that already produced, the sulphur being sublimed in a chamber dprovided for this purpose. a

The antimony is collected through the tap-hole t and the operation isthus con- I at a; be regulated in pro ortion to the owing out'of themetal.

aving now particularly described my invention and in what manner thesame is to 5 be performed what I claim is:

1. A process for the direct recovery of metallic antimony, from itssulphide comprising heating the sulphide, out of contact with oxygen, toits temperature of disso- 7 ciation, and separating out and collectingthe metallic antimony by gravitation.

2. A process according to claim 1, any escaping dissociated sulphidevapor being subjected to a further heating out of contact with oxygen,to its dissociation tem-v perature, the metal being separated out bygravity, and the dissociated sulphur being: recovered by sublimation.

In testimony whereof I have signed my name to this specification.

' ANTONIN GERMOT.

